package com.example.springbootyczy.intercepter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Slf4j
public class LoginInterceptor implements HandlerInterceptor {
    /**
     * controller运行之前执行
     * true:表示放行
     * false: 表示拦截
     * 具体拦截逻辑写在这个地方
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        log.info("--preHandle--:{}", "拦截器");
        return true;
    }

    // controller运行之后执行
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        log.info("--postHandle: {} ", "postHandle执行");
    }

    /**
     *程序执行完成之后执行
     */
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        log.info("--postHandle: {} ", "afterCompletion执行");
    }
}
